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118972144 = 2471104729
BaseRepresentation
bin1110001011101…
…01111011110000
322021212102002201
413011311323300
5220424102034
615445552544
72643150364
oct705657360
9267772081
10118972144
116117a595
1233a15754
131b857125
1411b2d2a4
15a6a1014
hex7175ef0

118972144 has 20 divisors (see below), whose sum is σ = 233757360. Its totient is φ = 58647680.

The previous prime is 118972127. The next prime is 118972153. The reversal of 118972144 is 441279811.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51229 + ... + 53500.

It is an arithmetic number, because the mean of its divisors is an integer number (11687868).

Almost surely, 2118972144 is an apocalyptic number.

It is an amenable number.

118972144 is a deficient number, since it is larger than the sum of its proper divisors (114785216).

118972144 is a wasteful number, since it uses less digits than its factorization.

118972144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104808 (or 104802 counting only the distinct ones).

The product of its digits is 16128, while the sum is 37.

The square root of 118972144 is about 10907.4352622420. The cubic root of 118972144 is about 491.8300909320.

It can be divided in two parts, 11897 and 2144, that added together give a palindrome (14041).

The spelling of 118972144 in words is "one hundred eighteen million, nine hundred seventy-two thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 71 142 284 568 1136 104729 209458 418916 837832 1675664 7435759 14871518 29743036 59486072 118972144